摘要:
var ui = (from u in _db.USER_INFO select u).FirstOrDefault();// 单个实体的用法ZRQCommon.EntitiesTools e = new ZRQCommon.EntitiesTools();return e.EntitiesToJs... 阅读全文
摘要:
var WReserve = (from m in _db.W_RESERVE select m).ToList().LastOrDefault();必须ToList() 之后才能 last first 函数,否则报错。这样会不会从数据库 取全部数据 然后再 last();未测试。using Sys... 阅读全文